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DE2261918A1 - DIPHENYL ETHER AND METHOD FOR THEIR MANUFACTURE AND USE - Google Patents

DIPHENYL ETHER AND METHOD FOR THEIR MANUFACTURE AND USE

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Publication number
DE2261918A1
DE2261918A1 DE19722261918 DE2261918A DE2261918A1 DE 2261918 A1 DE2261918 A1 DE 2261918A1 DE 19722261918 DE19722261918 DE 19722261918 DE 2261918 A DE2261918 A DE 2261918A DE 2261918 A1 DE2261918 A1 DE 2261918A1
Authority
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Germany
Prior art keywords
ether
nitrophenyl
methyl
trichlorophenyl
substituted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE19722261918
Other languages
German (de)
Inventor
Robert James Theissen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ExxonMobil Oil Corp
Original Assignee
Mobil Oil Corp
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Filing date
Publication date
Application filed by Mobil Oil Corp filed Critical Mobil Oil Corp
Publication of DE2261918A1 publication Critical patent/DE2261918A1/en
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • C07C255/49—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
    • C07C255/53—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing cyano groups and hydroxy groups bound to the carbon skeleton
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N33/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds
    • A01N33/16—Biocides, pest repellants or attractants, or plant growth regulators containing organic nitrogen compounds containing nitrogen-to-oxygen bonds
    • A01N33/18—Nitro compounds
    • A01N33/20—Nitro compounds containing oxygen or sulfur attached to the carbon skeleton containing the nitro group
    • A01N33/22—Nitro compounds containing oxygen or sulfur attached to the carbon skeleton containing the nitro group having at least one oxygen or sulfur atom and at least one nitro group directly attached to the same aromatic ring system
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
    • A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
    • C07C205/07—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by halogen atoms
    • C07C205/11—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by halogen atoms having nitro groups bound to carbon atoms of six-membered aromatic rings
    • C07C205/12—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by halogen atoms having nitro groups bound to carbon atoms of six-membered aromatic rings the six-membered aromatic ring or a condensed ring system containing that ring being substituted by halogen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
    • C07C205/27—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by etherified hydroxy groups
    • C07C205/35—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by etherified hydroxy groups having nitro groups and etherified hydroxy groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
    • C07C205/36—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by etherified hydroxy groups having nitro groups and etherified hydroxy groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton to carbon atoms of the same non-condensed six-membered aromatic ring or to carbon atoms of six-membered aromatic rings being part of the same condensed ring system
    • C07C205/38—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by etherified hydroxy groups having nitro groups and etherified hydroxy groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton to carbon atoms of the same non-condensed six-membered aromatic ring or to carbon atoms of six-membered aromatic rings being part of the same condensed ring system the oxygen atom of at least one of the etherified hydroxy groups being further bound to a carbon atom of a six-membered aromatic ring, e.g. nitrodiphenyl ethers
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
    • C07C205/44—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by —CHO groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C311/00—Amides of sulfonic acids, i.e. compounds having singly-bound oxygen atoms of sulfo groups replaced by nitrogen atoms, not being part of nitro or nitroso groups
    • C07C311/15—Sulfonamides having sulfur atoms of sulfonamide groups bound to carbon atoms of six-membered aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C317/00—Sulfones; Sulfoxides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C323/00—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Description

Es sind Diphenylather mit tierbizider Wirksamkeit vorgesehlagen worden, die Halogensubstituenten an einem Phenylring und nur einen Nitrosubstituenten am anderen (zweiten) Phenylring aufweisen, Weiterhin sind Diphenyläther bekannt, die am zweiten Phenylring in Z- und 4-Stellungen substituiert sind. Diphenyläther, bei denen an einem Phenylring Halogen (Chlor)-Substituenten, am anderen Phenylring ein Substituent in 3-Stellung und ein Nitrosubstituent in 4-Stellung stehen, gehören nicht zum Stand der Technik, Dabei treten gerade die erfindungsgemäßen in 3-Stellung substituierten Diphenyläther gegenüber den vorbezeichneten Verbindungen mit erheblieh besserer herbizider Aktivität hervor.Diphenyl ethers have been proposed which have an animalicidal activity and which have halogen substituents on one phenyl ring and only one nitro substituent on the other (second) phenyl ring. Furthermore, diphenyl ethers are known which are substituted in Z and 4 positions on the second phenyl ring. Diphenyl ether, in which are provided on a phenyl ring, halogen (chloro) substituent, at the other phenyl ring is a substituent in the 3-position and a nitro substituent in the 4-position, not part of the prior art The just contact according to the invention in the 3-position substituted diphenyl ether compared to the aforementioned compounds with considerably better herbicidal activity.

309826/1197309826/1197

Die Erfindung betrifft Diphenylather der allgemeinen Formel RThe invention relates to diphenyl ethers of the general formula R.

°2" W° 2 "W.

in welcherin which

X HalogenX halogen

η eine ganze Zahl von 1 bis 5, R Alkyl mit 1 bis 4 Kohlenstoffatomen, Alkoxy mit 1 bis 4 Kohlenstoffatomen, Halogen, Trifluormethyl-, Cyan-, Suifo-, Methylsulfonyl-, Formyl-, Methylthio- und Dimethylaminosulfony!gruppen bedeuten.η is an integer from 1 to 5, R is alkyl with 1 to 4 carbon atoms, Alkoxy with 1 to 4 carbon atoms, halogen, trifluoromethyl, cyano, suifo-, Methylsulfonyl, formyl, methylthio and dimethylaminosulfonyl groups mean.

Gleichfalls ist Gegenstand der Erfindung ein Verfahren zur Kontrolle des Pflanzenwuchses sowohl bei Verwendung wenigstens eines der obengenannten Diphenylather, als auch bei Verwendung eines Gemisches, das sich aus wenigstens einem der vorgenannten Diphenylether und einem geeigneten Träger zusammensetzt.The invention also relates to a method for Control of plant growth both when using at least one of the above-mentioned diphenyl ethers, as well as when used a mixture which is composed of at least one of the aforementioned diphenyl ethers and a suitable carrier.

Die Diphenylether der vorliegenden Erfindung können in einfacher V.'cise nach der bekannten "Ullmannschen Äthersynthese" hergestellt werden, so z.B. durch Umsetzen des Alkalisalzes eines Halogenphenols mit einem in 3-Stellung substituierten 4-Nitrochlor-(oder brom) benzol. Man gewinnt das in 3-Stellung substituierte-4-Nitrohalogenbenzol in einfacher Ausführung durch Nitrieren eines in 3-Stellung substituierten Halogenbenzols. Ein typisches Verfahren verläuft folgendermaßen: The diphenyl ethers of the present invention can be easily used V.'cise according to the well-known "Ullmann's ether synthesis" can be prepared, for example, by reacting the alkali salt of a halophenol with one substituted in the 3-position 4-nitrochloro- (or bromo) benzene. The 4-nitrohalogenobenzene substituted in the 3-position is obtained in a simple version by nitrating a halogenobenzene substituted in the 3-position. A typical procedure is as follows:

Beispiel 1example 1

3-Methyl-4-nitrochlorbenzol (5-chlor-2-nitrotoluol) wurde in Anlehnung an ein in J. Org.Ghem., 33, 1245 (1968) von J. V/right und E.C. Jorgensen beschriebenes Verfahren hergestellt. Zu m-Chlortoluol (500 g)3-methyl-4-nitrochlorobenzene (5-chloro-2-nitrotoluene) was based on a in J. Org.Ghem., 33, 1245 (1968) by J. V / right and E.C. Jorgensen described Process made. To m-chlorotoluene (500 g)

30 9 826/119730 9 826/1197

-3--3-

wurden bei 6-stündigem Rühren rauchende Salpetersäure (1300 ml, spez.Gew. 1,52) zugetropft und hierbei die Temperatur unter 5 C gehalten. Nach erfolgter Zugabe der Säure wurde das Reaktionsgemisch noch 2 Stunden bei O0C gerührt und über Nacht abgekühlt. Beim Ausgießen des Gemisches auf zerstoßenes Eis schied sich ein Öl aus, das mit Äther extrahiert wurde. Die ätherische Lösung wurde zunächst mit 5 %iger wässriger Natriumhydroxydlösung und sodann mit gesättigter Natriumchloridlösung gewaschen. Nach Trocknen der ätherischen Lösung über Na2SO4 und Entfernen des Lösungsmittels betrug die Ausbeute an rohem nitrierten Produkt 7O9 g. Eine Vakuumdestillation erbrachte 572 g eines Produktes mit einem Anfangssiedepunkt von 69 bis 72°C bei O,6 mm Hg. Das Destillat enthielt 75 bis 80 % -' ermittelt durch Gaschrornatographie (Vapor Phase Chromatography) - des gewünschten Produktes und konnte als solches im Rahmen der "Ullmann-Äthersynthese" eingesetzt werden,- nachdem sich herausgestellt hatte, daß die isomere unreine Beimischung, nämlich das 2-Methyl-4-nitrochlorbenzol, erheblich reaktionsärmer als 3-Methyl-4-nitrochlorbenzol wirkt.fuming nitric acid (1300 ml, specific weight 1.52) was added dropwise while stirring for 6 hours, while the temperature was kept below 5 ° C. After the acid had been added, the reaction mixture was stirred for a further 2 hours at 0 ° C. and cooled overnight. When the mixture was poured onto crushed ice, an oil separated out, which was extracted with ether. The ethereal solution was washed first with 5% aqueous sodium hydroxide solution and then with saturated sodium chloride solution. After drying the ethereal solution over Na 2 SO 4 and removing the solvent, the yield of crude nitrated product was 709 g. A vacuum distillation yielded 572 g of a product with an initial boiling point of 69 to 72 ° C. at 0.6 mm Hg. The distillate contained 75 to 80% - determined by gas chromatography (vapor phase chromatography) - of the desired product and could as such be within the range the "Ullmann ether synthesis" - after it had been found that the isomeric impure admixture, namely 2-methyl-4-nitrochlorobenzene, is considerably less reactive than 3-methyl-4-nitrochlorobenzene.

Als Beispiele für die erfindungsgemäßen Diphenyläther seien u.a. genannt:Examples of the diphenyl ethers according to the invention are named among others:

3-Methyl-4-nitrophenyl-2',4',6'-trichlorphenyläther 3-Trifluormethyl-4-nitrophenyl-2',4',6'-tribromphenyläther 3-Formyl~4-nitrophenyl-2',4',ö'-tribromphenyläther 3-Methoxy-4-nitrophenyl-2·,4',ö'-trichlorphenyläther 3-Butoxy-4-nitrophenyl-2',4',o'-tribromphenyläther 3-Trifluor-4-nitrophenyl-2',4',o'-trichlorphenyläther 3-Isopropyl-4~nitrophenyl-2',4',ö'-trichiorphenyläther 3-Cyan-4-ni1:rophenyl-2I ,4' ,o'-trichlorphenyläther 3-Chlor-4-nitrophonyl-2',4',o'-trichlorphenyläther3-methyl-4-nitrophenyl-2 ', 4', 6'-trichlorophenyl ether 3-trifluoromethyl-4-nitrophenyl-2 ', 4', 6'-tribromophenyl ether 3-formyl ~ 4-nitrophenyl-2 ', 4', ö'-tribromophenyl ether 3-methoxy-4-nitrophenyl-2, 4 ', ö'-trichlorophenyl ether 3-butoxy-4-nitrophenyl-2', 4 ', o'-tribromophenyl ether 3-trifluoro-4-nitrophenyl-2' , 4 ', o'-trichlorophenyl ether 3-isopropyl-4 ~ nitrophenyl-2', 4 ', ö'-trichlorophenyl ether 3-cyano-4-ni1: rophenyl-2 I , 4', o'-trichlorophenyl ether 3-chloro 4-nitrophonyl-2 ', 4', o'-trichlorophenyl ether

-4--4-

3 0 9 8 2 6/11973 0 9 8 2 6/1197

3-Sulfo—4-nitrophenyl-2·,4*,ö'-trichlorphenyläther 3-Methylsulfonyl-4~nitrophenyl-2·,4*,o'-trichlorphenyläther" 3-Methylsulfonyl-4-nitrophenyl-"2· ,4' ,6'-trif luorphenyläther 3-Methylthio-4-nitrophenyl-2·,4',o'-trichlorphenyläther 3-Dimethylaminosulfonyl-4-nitrophenyl-2',4",6'-trichlorphenylather 3-Methyl-4-nitrophenyl~2',4'-dichlorphenyläther 3-Trifluormethy1-4-nitropheny1-2',4'-dichlorphenylather 3-Methyl-4-nitrophenyl-2', 4',S'-trichlorphenyläther und 3-Trifluormethyl-4-nitrophenyl-2',4*,5'-trichlorphenylather3-sulfo-4-nitrophenyl-2 ·, 4 *, δ'-trichlorophenyl ether 3-methylsulfonyl-4 ~ nitrophenyl-2 ·, 4 *, o'-trichlorophenyl ether " 3-methylsulfonyl-4-nitrophenyl- "2 ·, 4 ', 6'-trifluorophenyl ether 3-methylthio-4-nitrophenyl-2, 4 ', o'-trichlorophenyl ether 3-dimethylaminosulfonyl-4-nitrophenyl-2 ', 4 ", 6'-trichlorophenyl ether 3-methyl-4-nitrophenyl ~ 2 ', 4'-dichlorophenyl ether 3-trifluoromethyl 1-4-nitrophenyl 1-2 ', 4'-dichlorophenyl ether 3-methyl-4-nitrophenyl-2 ', 4', S'-trichlorophenyl ether and 3-trifluoromethyl-4-nitrophenyl-2 ', 4 *, 5'-trichlorophenyl ether

Beispiel 2Example 2

Eine Lösung, die 5-Chlor~2-nitrotoluol (25,Og; 0,146 mol) und das Kaliumsalz des 2',4'f6'-Trichlorphenols (34,4 g; 0,146 mol) in Dimethylsulfoxyd (75 ml) enthielt, wurde 17 Stunden bei 170°C unter Rühren erhitzt· Die abgekühlte Reaktionsmischung wurde mit Wasser (500 ml) verdünnt und sodann mit Chloroform (3 mal 1OO ml) extrahiert. Die organische Lösung wurde eingeengt und der Hauptteil des nicht in die Reaktion eingegriffenen 5-Chlor-2~nitrotoluols durch Dampfdestillation entfernt. Nach Umkristallisieren des Rückstandes zunächst aus Äthanol, sodann aus Petroläther (65 bis 100°C) wurden 3,ο g eines Produktes mit einem Schmelzpunkt von 98 bis 108°C erhalten. Sowohl durch Infrarotanalyse, als auch durch Kernresonanzspektrometrie (NMR = Nuclear Magnetic Resonance) konnte die Struktur für das erhaltene Produkt übereinstimmend als 3-Methyl-4-nitrophenyl-2·,4',6-trichlorphenyläther ermittelt v/erden.A solution containing 5-chloro-2-nitrotoluene (25.0 g; 0.146 mol) and the potassium salt of 2 ', 4' f 6'-trichlorophenol (34.4 g; 0.146 mol) in dimethyl sulfoxide (75 ml), was heated with stirring at 170 ° C. for 17 hours. The cooled reaction mixture was diluted with water (500 ml) and then extracted with chloroform (3 times 100 ml). The organic solution was concentrated and most of the 5-chloro-2-nitrotoluene which had not been involved in the reaction was removed by steam distillation. After recrystallization of the residue first from ethanol and then from petroleum ether (65 to 100 ° C.), 3.0 g of a product with a melting point of 98 to 108 ° C. were obtained. Both by infrared analysis and by nuclear magnetic resonance spectrometry (NMR = Nuclear Magnetic Resonance) it was possible to determine the structure of the product obtained consistently as 3-methyl-4-nitrophenyl-2, 4 ', 6-trichlorophenyl ether.

Beispiel 3Example 3

Eine Lösung, die 5-Chlor-2-nitrobenzotriflubrid (30,O g; 0,133 mol) und das Kaliumsalz des 2',4',o'-Trichlorphenols (31,3 g; O,133 mol) in Dimethylformamid (75 ml)A solution containing 5-chloro-2-nitrobenzotriflubride (30.0 g; 0.133 mol) and the potassium salt of 2 ', 4', o'-trichlorophenol (31.3 g; O, 133 mol) in dimethylformamide (75 ml)

309826/1197 _5- 309826/1197 _ 5-

enthielt, wurde 5 Stunden bei 150 C unter Rühren er-* hitzt. In ähnlicher Darstellung, v/ie im Beispiel 1 beschrieben, erhielt man 19,3 g eines hellgelben festen 4-Nitro-3-.trifluormethyl-2' ,4* ,6'-trichlorphenyläthers mit einem Schmelzpunkt von 74 bis 77°C.contained, was stirred for 5 hours at 150 ° C * heats. In a similar representation, as described in Example 1, 19.3 g of a light yellow were obtained solid 4-nitro-3-trifluoromethyl-2 ', 4 *, 6'-trichlorophenyl ether with a melting point of 74 to 77 ° C.

Beispiele 4 bis 9Examples 4 to 9

In analogen Reaktionsverfahren wurden auch folgende Diphenyler gewonnen:The following diphenyls won:

YZY Z

Z Schmelzpunkt (°C)Z melting point (° C)

Beispielexample 44th - CHO'- CHO ' ClCl HH 129129 bisuntil 132132 Beispielexample 55 OCH3.OCH 3 . ClCl HH 133133 bisuntil 138138 Beispielexample 66th CNCN ClCl HH 169169 bisuntil 174174 Beispielexample 77th ClCl ClCl HH 7575 bisuntil 7979 Beispielexample 88th CH3 CH 3 HH HH 6969 bisuntil 7272 Beispielexample 99 GH3 GH 3 HH ClCl 1OO1OO bisuntil ' 1O3'1O3 Beispiele 10Examples 10 bis 29until 29

Ergänzend wurden, wie vorstehend beschrieben, in analoger Weise die nachfolgend aufgeführten Diphenyläter dargestellt: Beispiel VerbindungIn addition, as described above, in an analogous manner the diphenyl ethers listed below are shown: Example connection

3-Methyl-4-nitrophenyl-2l ,4',6.'-trichlorphenyläther 3»·Methyl-4-nitrophenyl-21,4' ,5'-trichlorphenyläther 3-Methyl-4-nitrophenyl-2l,4'-dibromphenyläther3-methyl-4-nitrophenyl-2 l , 4 ', 6'-trichlorophenyl ether 3 »· methyl-4-nitrophenyl-2 1 , 4', 5'-trichlorophenyl ether 3-methyl-4-nitrophenyl-2 l , 4 '-dibromophenyl ether

309826/1197309826/1197

-6--6-

- O- O

Beispiel VerbindungExample connection

13 3-Methyl-4-nitrophenyl-2',o'-dichlorphenyläther13 3-methyl-4-nitrophenyl-2 ', o'-dichlorophenyl ether

14 3-Methyl-4-nitrophenyl-2'-chlor-4'-fluorphenyläther14 3-Methyl-4-nitrophenyl-2'-chloro-4'-fluorophenyl ether

15 3-Methyl-4-nitrophenyl-2',3'-dichlorphenyläther15 3-methyl-4-nitrophenyl-2 ', 3'-dichlorophenyl ether

16 3-Methyl-4-nitrophenyl-3',4'-dichlorphenyläther16 3-methyl-4-nitrophenyl-3 ', 4'-dichlorophenyl ether

17 3-Methyl-4-nitrophenyl-3',5'-dichlorphenyläther17 3-methyl-4-nitrophenyl-3 ', 5'-dichlorophenyl ether

18 3-Methyl-4-nitrophenyl-2',5'-dichlorphenyläther18 3-methyl-4-nitrophenyl-2 ', 5'-dichlorophenyl ether

19 3-Methyl-4-nitrophenyl-2',4l-dichlor-6'-fluorphenyläther19 3-methyl-4-nitrophenyl-2 ', 4 l -dichloro-6'-fluorophenyl ether

20 3-Ä"thyl-4-nitrophenyl-2',4'-dichlorphenyläther20 3-ethyl-4-nitrophenyl-2 ', 4'-dichlorophenyl ether

21 3-Äthyl-4-nitrophenyl-2l-chlorphenylöther21 3-ethyl-4-nitrophenyl-2 l -chlorophenyl ether

22 3-Cyan-4-nitrophenyl-2·,3',4' , 5' ,6'-pentachlorphenyläthör22 3-cyano-4-nitrophenyl-2, 3 ', 4', 5 ', 6'-pentachlorophenyl ether

23 3~Methylsulfonyl-4-nitrophenyl-2',4*-dichlorphehyläther23 3 ~ methylsulfonyl-4-nitrophenyl-2 ', 4 * -dichlorophyl ether

24 3-Formyl-4-nitrophenyl-2'^'-dichlorphenyläther24 3-Formyl-4-nitrophenyl-2 '^' - dichlorophenyl ether

25 3-Methylthio-4-nitrophenyl-2'^'-dichlorphenyläther25 3-Methylthio-4-nitrophenyl-2 '^' - dichlorophenyl ether

26 3-Methoxy-4-nitrophenyl-2'-,4'-dichlorphenyläther26 3-methoxy-4-nitrophenyl-2 '-, 4'-dichlorophenyl ether

27 3-Trifluormethyl-4-nitrophenyl-2*,4'-dichlorphenyläthor27 3-Trifluoromethyl-4-nitrophenyl-2 *, 4'-dichlorophenyl ether

28 3-Trifluormethyl-4-nitrophenyl-2',4'-dichlor-6'-fluor28 3-Trifluoromethyl-4-nitrophenyl-2 ', 4'-dichloro-6'-fluoro

phenylätherphenyl ether

29 3-Cyan-4-nitrophenyl-2·f4'-dichlorphenyläther29 3-cyano-4-nitrophenyl-2 · f 4'-dichlorophenyl ether

Zum Erreichen herbizider Wirkung können die erfindungsgemäßen Verbindungen in der jeweils verschiedensten V/eise eingesetzt werden, so, an sich, als Feststoffe oder in Dampfform, vorzugsweise aber als toxische Komponenten in postiziden Gemischen der erfindungsgemäßen Verbindung zusammen mit einem Träger. Die Zusammensetzungen lassen sich als Stäubemittel, als zerstäubte Flüssigkeiten oder als gasangetriebene Sprays einsetzen und können, zusammen mit einem Träger, Zuschlagsstoffe, wie z.B. Ernulgier—, Bindemittel, in flüssiger Form komprimierte Gase, Duftstoffe, Stabilisatoren und dgl. enthalten. Eine beträchtliche Anzahl flüssiger und fester Träger können zur Anwendung kommen. Beispielsweise feste Träger sind u.a. Talkum, Bentonitt Diatomeenerde, Pyrophyllit, Fullererde, Gips, aus Baurnwollsaat und Nußschalen erhaltene Feinmehle und verschiedene natürliche und synthetische Tone mit einem etwa 9,5 nicht übersteigenden pH-V/ert. Beispiele für flüssige Träger, einschl. Viasser, sind or-To achieve a herbicidal effect, the inventive Compounds are used in a wide variety of ways, so, per se, as solids or in vapor form, preferably but as toxic components in posticidal mixtures of the compound according to the invention together with a carrier. The compositions can be used as dusts, as atomized liquids or as gas-powered sprays and, together with a carrier, additives such as emulsifiers, Contain binders, gases compressed in liquid form, fragrances, stabilizers and the like. A considerable one A number of liquid and solid carriers can be used. Examples of solid carriers include talc, bentonite, diatomaceous earth, pyrophyllite, fuller's earth, gypsum, from cotton seeds and Fine flours obtained from nut shells and various natural and synthetic clays with a pH value not exceeding 9.5. Examples of liquid carriers, including Viasser, are or-

309826/1197309826/1197

ganische Lösungsmittel, wie z.B. Alkohole, Ketone, Amide und Ester, Mineraloele, wie z.B. Kerosin, leichte und mittelschwere Öle und pflanzliche Öle, wie z.B. Baumwollsaatöl.Chemical solvents such as alcohols, ketones, amides and esters, mineral oils such as kerosene, light and medium-weight Oils and vegetable oils, such as cottonseed oil.

In der Praxis wird die Zugabe des Herbizids nach kg pro ha (pounds por acre) bemessen. Die erfindungsgemäßen Verbindungen erweisen sich als wirkungsvolle Herbizide, wenn die Aufwandmengen beispielsweise zwischen etwa 0,22 und etwa 11,2 kg pro ha (etwa O,2 und etwa 1O pounds per acre) liegen.In practice, the herbicide is added according to kg per hectare (pounds per acre). The compounds according to the invention prove to be effective herbicides when the application rates, for example, between about 0.22 and about 11.2 kg per ha (about 0.2 and about 10 pounds per acre).

Herbizide Wirkung Anpflanz- und Auf ldufrnethode bei Testspecies:Herbicidal effect of planting and diffusion methods in test species:

Blutfingerhirse (Crab grass) - Digitaria sahguinalis Blood finger millet (Crab grass) - Digitaria sahguinalis

Gelbe. Borstenhirse (Yellow Foxtail grass)- Setaria glauca "Wilde Mohrenhirse (Johnson grass) - Sorghum halepense Hühnerhirse (Barnyard grass) - Echinochloa crus-galli Yellow. Barnyard millet (Yellow Foxtail grass) - Setaria glauca "Wild black millet (Johnson grass) - Sorghum halepense Barnyard grass - Echinochloa crus-galli

Zurückgekrümmter Fuchsschwanz (AmaranthCurved back foxtail (Amaranth

pigweed) - Amaranthus retroflexus pigweed) - Amaranthus retroflexus

Wasserrübe (Turnip) - Brassica sp. Water beet (Turnip) - Brassica sp.

Baumwolle (Cotton) - Gossypium hirsutum var.Cotton - Gossypium hirsutum var.

DPL smooth leafDPL smooth leaf

Mais (Corn) - Zea Mays var. Golden Bantam,Mais (Corn) - Zea Mays var.Golden Bantam,

Bohne (Bean) - Phaseolu's vulgaris var.Bean - Phaseolu's vulgaris var.

black Valentineblack valentine

Sämtliche Kultur- und Unkrautspecies werden einzeln in Topferde enthaltende 76 mm (3 inches) Plastiktöpfe angepflanzt. Dabei wird das Saatgut (je 4 Körner bezw. Bohnen) von Mais, Baumwolle und grüner Bohne'(snapbean) bis zu einer Tiefe eingesät, die dem jeweiligen Durchmesser der Saat entspricht. Alle' anderen Species werden an der Oberfläche ausgesät und in ausreichender Menge mit gesiebter Erde zum Bedecken der Saat bestreut. Unmittelbar nach dem Anpflanzen werden sämtliche Töpfe in Gewächshauskästen durch Anstau (subirrigation) bewässert. Die für die Vorlaufphase (pre-emergence-phase) bestimmten Töpfe werden einen Tag vor der Behandlung angesät.All cultivated and weed species are put into potting soil individually Planted containing 76 mm (3 inches) plastic pots. The seeds (4 grains and 4 beans each) are made from maize, cotton and green bean '(snapbean) sown to a depth that corresponds to the diameter of the seed. All 'other species are sown on the surface and sprinkled with sieved earth in sufficient quantities to cover the seeds. Direct After planting, all pots in greenhouse boxes are watered by damming (subirrigation). The one for the preliminary phase (pre-emergence-phase) certain pots are released one day before the Treatment sown.

9826/1197 - 8 -9826/1197 - 8 -

Die Anpflanzzeiten für die Nachauflaufphase (post-emergence phase) werden so eingerichtet, daS alle Sämlinge den gewünschten Entwicklungsstand gleichzeitig erreichen. Die Behandlung in der Nachauflaufphase setzt ein, wenn in der Entwicklung der Sämlinge folgender Stand erreicht ist:The planting times for the post-emergence phase) are set up in such a way that all seedlings reach the desired stage of development at the same time. The treatment in the post-emergence phase, when in development the seedlings have reached the following level:

Gräser: 50,8 mm (2 inches) hochGrasses: 50.8 mm (2 inches) high

Zurückgekrümmter Fuchsschwanz u. V/asserrübe: 1 oder 2 Laubblätter, sichtbar über denCurved back foxtail and beet: 1 or 2 leaves, visible over the

KotyledonenCotyledons

Baumwolle: Erstes Laubblatt 25,4 mm (1 inch) lang,Cotton: First leaf 25.4 mm (1 inch) long,

ausgebreitete Kotyledonenspread out cotyledons

Mais: 76,2 bis 101,6 mm ( 3 bis 4 inches) hochCorn: 3 to 4 inches (76.2 to 101.6 mm) high

Bohne: Erste Blätter ausgebreitet, VegetationsBean: First leaves spread out, vegetation

punkt beim 1.Blattknotenpoint at the 1st leaf knot

Verfahren der Behandlung Method of treatment

Spritzvorgänge werden unter einer ein Förderband und eine festsitzende Spritzdüse aufweisende Haube ausgeführt. Beim Passieren der Spritzhaube wird jeweils ein Topf der Species (Vorauflaufphase) auf den Vorderteil einer Holzplatte und ein Topf der bereits entwickelten Pflanzen (Nachauflaufphase) auf die hintere Hälfte der Platte gestellt. Nach Bespritzen werden die behandelten Töpfe in das Gewächshaus gebracht. Während der Beobachungspcriode erfolgt das Bewässern durch Anstau.Spraying processes are carried out under a hood with a conveyor belt and a fixed spray nozzle. At the A pot of the species will pass through the spray hood (Pre-emergence phase) on the front part of a wooden panel and a Pot of the already developed plants (post-emergence phase) on the rear half of the plate. After spraying, the treated pots brought into the greenhouse. During the observation period watering is done by damming.

Die für die Applikation anfänglich angewandte Menge an erfindungsgemäßer Verbindung wird so gewählt, daß sie 8,9 kg pro ha (8 pounds per acre) entspricht. Zwei Wochen nach der Behandlung wird die Schädigung für Vor- und Nachauflauf visuell in % bewertet.The amount of compound according to the invention initially used for the application is chosen so that it corresponds to 8.9 kg per hectare (8 pounds per acre). Two weeks after the treatment, the damage for pre- and post-emergence is assessed visually in%.

Die Verbindungen der Beispiele 2 bis 29 wurden dem herbiziden Test unterworfen. Dosierung und Resultate gehen aus nachfolgender Tabelle hervor. Um die bei den Diphenyläthern unterschiedliche Wirkung der 2- gegenüber der 3-Stellung zu zeigen, sind die Angaben für 2-Trifluormethyl-4-nitrophenyl-21,4',6'-trichlorphenyläther,identisch mit dem im südafrikanischen Patent Mo. 67/6579 offenbarten "Ciba", mit. aufgeführtThe compounds of Examples 2 to 29 were subjected to the herbicidal test. Dosage and results are shown in the table below. In order to show the different effects of the 2-position compared to the 3-position with the diphenyl ethers, the information for 2-trifluoromethyl-4-nitrophenyl-2 1 , 4 ', 6'-trichlorophenyl ether is identical to that in the South African patent No. 67 / 6579 disclosed "Ciba", with. listed

worden. 309826/1197been. 309826/1197

In der Tabelle haben die Pflanzen folgende Code-Suchstaben erhalten: "In the table, the plants have the following code search letters obtain: "

Blutfingerhirse - BFHBlood finger millet - BFH

Gelbe Borstenhirse - GBHYellow millet - GBH

Wilde Mohrenhirse - WMHWild black millet - WMH

Hühnerhirse' ' - HHChicken millet '' - HH

Zurückgekrümmter . . . . . . . ,Curved back. . . . . . . ,

Fuchsschwanz . - ZFSFoxtail. - ZFS

Wqsserrübe . . — \\¥i '..-_ ■ .. Baumwolle - BW-Mais - MS . . ' '■- ■"■'■ Bohne . . ■ " - BN-Water beet. . - \\ ¥ i '..-_ ■ .. Cotton - BW Maize - MS. . '' ■ - ■ "■ '■ bean.. ■" - BN-

309826/1197309826/1197

TabelleTabel

Dosierung
kg/ha (lbs./acre)dosage
kg / ha (lbs./acre) 8
2
18th
2
1 3FH3FH HerbizideHerbicides V/M HV / M H Wirkungeffect ZFSZFS WRWR BViBVi MSMS BNBN 11 3,8
2,2
1,13.8
2.2
1.1 44th 1CO/90
1CO/90
9Ο/9Ο1CO / 90
1CO / 90
9Ο / 9Ο vor/nach dombefore / after dom 70/70
7Ο/9Ο
2Ο/9Ο70/70
7Ο / 9Ο
2Ο / 9Ο AuflaufenAccruing 100/90
10O/1CO
-/1CO100/90
10O / 1CO
- / 1CO 30/0
0/30
0/3030/0
0/30
0/30 80/4O
3Ο/8Ο
100/8080 / 4O
3Ο / 8Ο
100/80 3Ο/3Ο
80/30
O/303Ο / 3Ο
80/30
O / 30 60/70
80/1OO
30/7060/70
80/1OO
30/70 OO Vorbin
dungen
des
BeispielsVorbin
fertilize
of
Example 4,44.4 88th 90/8090/80 GBHGBH 70/7070/70 HHHH -190-190 O/6OO / 6O SO/TOOSO / TOO 5Ο/3Ο5Ο / 3Ο 100/1OO100/100 II. 22 8,88.8 44th O/4OO / 4O 8O/SO
7Ο/9Ο
50/008O / SUN
7Ο / 9Ο
50/00 20/2O20/2O 20/5O
7Ο/7Ο
O/GO20 / 5O
7Ο / 7Ο
O / GO -/2O- / 2O 0/300/30 30/2O30 / 2O 3O/O3O / O 8O/8G8O / 8G 33 4,44.4 44th 2Ο/5Ο2Ο / 5Ο -/-- / - 20/7O20 / 7O 2Ο/3Ο2Ο / 3Ο 40/1OO40/1OO 0/1OO0/100 1OO/1OO1OO / 1OO 0/200/20 100/1.00100 / 1.00 Ciba
CjCiba
Cj 4,44.4 88th 20/1OO20/1OO -/-..- / - .. C/80C / 80 O/2OO / 2O -/1CO- / 1CO 0/500/50 100/100100/100 1ΟΟ/1ΟΟ1ΟΟ / 1ΟΟ 100/1CO100 / 1CO 4 O4 O 8,38.3 88th O/3OO / 3O -/-.- / -. 4O/3O4O / 3O O/3OO / 3O 4Ο/9Ο4Ο / 9Ο O/4OO / 4O 80/080/0 8O/O8O / O 8O/O8O / O 5 OO5 OO 8,88.8 4
24th
2 90/5O90 / 5O -/-- / - 6Ο/8Ο6Ο / 8Ο O/60O / 60 -/-- / - 20/6O20/6O 50/5O50 / 5O O/3OO / 3O 70/6070/60 6 ς«6 ς « 4,4
2,24.4
2.2 88th 1OO/9O
10C/S0100/90
10C / S0 -I--I- 1ΟΟ/9Ο
9Ο/3Ο1ΟΟ / 9Ο
9Ο / 3Ο O/2OO / 2O -/8O- / 8O 40/60
20/2040/60
20/20 3Ο/9Ο
50/8O3Ο / 9Ο
50 / 8O 5Ο/5Ο
2O/2O5Ο / 5Ο
2O / 2O 8Ο/1OO
100/1 co8Ο / 100
100/1 co 7 ^7 ^ 8,88.8 44th 80/8080/80 -I--I- 60/3060/30 40/6O40 / 6O -/-- / - 30/2030/20 60/9O60 / 9O 3O/3O3O / 3O SO /60SO / 60 8 -*
(O 8th -*
(O 4,44.4 44th 7Ο/5Ο7Ο / 5Ο -I-
90/5O -I-
90 / 5O 4O/3O4O / 3O 1OC/9O
1OO/4O1OC / 9O
100/40 o/-O/- 3G/3O3G / 3O 30/3O30 / 3O 5O/3Ö5O / 3Ö 6O/5C6O / 5C OO 4,44.4 7Ο/3Ο7Ο / 3Ο -/-■- / - ■ 3Ο/2Ο3Ο / 2Ο O/40O / 40 -/-- / - 30/2030/20 5Ο/4Ο5Ο / 4Ο O/2OO / 2O SO/5OSO / 5O 1010 -/3O- / 3O 3Ο/2Ο3Ο / 2Ο 1111 -/-2O- / - 2O 2Ο/2Ο2Ο / 2Ο

VerbinConnect 2020th Dosierungdosage ■■ lbs/acre)lbs / acre) BFHBFH GBHGBH WMHWMH HHHH ZFSZFS [X1R[X 1 R BWBW MSMS BNBN dungenfertilize 2121 kg/ha (kg / ha ( dCSdCS 44th 80/5080/50 -/-- / - 70/3O70 / 3O O/3OO / 3O 90/1OO90/1OO 0/300/30 5O/3O5O / 3O O/2OO / 2O 1OO/1OO1OO / 1OO BeispielsExample 4,44.4 88th 0/300/30 -I--I- 0/200/20 O/20O / 20 O/OO / O 0/00/0 0/00/0 0/200/20 100/80100/80 1212th 8,88.8 88th 100/60100/60 -I--I- 9O/9O9O / 9O 70/3070/30 .-/-.- / - 3O/2O3O / 2O 3O/4O3O / 4O 60/3060/30 0/600/60 1313th 8,88.8 44th 100/-100 / - -/-- / - 90/-90 / - 60/-60 / - -/-- / - 40/-40 / - 1OO/-1OO / - 60/-60 / - o/-O/- 1414th 4,44.4 22 70/3070/30 80/-80 / - 8O/3O8O / 3O 3O/4O3O / 4O 1OO/6O100/6O 2O/6O2O / 6O 30/5030/50 8O/3O8O / 3O 1OO/5O100/50 2,2 ,2.2, 88th 40/3040/30 20/3020/30 O/3OO / 3O O/3OO / 3O O/50O / 50 20/4020/40 8O/5O8O / 5O 0/200/20 100/70100/70 8,88.8 88th 0/30 ■0/30 ■ O/4OO / 4O 0/400/40 0/300/30 0/200/20 2O/3O2O / 3O 100/60100/60 30/030/0 80/5O80 / 5O 1515th 8,88.8 88th O/3OO / 3O 2O/4O2O / 4O 0/300/30 O/30O / 30 O/4OO / 4O 20/3020/30 80/5080/50 30/2030/20 90/6O ''90 / 6O '' 16 S16 pp . 8,8. 8.8 88th O/2OO / 2O 2O/2O2O / 2O O/2OO / 2O 20/3020/30 2O/O2O / O 20/2O20/2O O/6OO / 6O 30/1030/10 0/30 ^0/30 ^ 17 S 17 p 8,88.8 88th 1OO/5O100/50 -/-- / - 100/-100 / - 100/-100 / - ' -/-'- / - 9O/1OO90/1OO 5O/1OO50/1OO 80/-80 / - -/- · l - / - l 18 NJ18 NJ 8,88.8 44th 100/-100 / - -/_- / _ 90/-90 / - 90/-90 / - '-/-'- / - 6O/-6O / - 40/-40 / - 4O/-4O / - -/-- / - 19 S19 p 4,44.4 22 1OO/-1OO / - -,/_-, / _ 80/-80 / - TO/-TO / - 20/-20 / - 30/-30 / - 30/-30 / - -I--I- ·=*· = * 2,22.2 11 1OO/9O100/90 -I --I - 90/-90 / - - 7O/-- 7O / - 1OO/-1OO / - 2O/202O / 20 40/5O40 / 5O 0/-0 / - -/-- / - *-** - * 1.11.1 1/21/2 8O/7O8O / 7O -/—- / - 6O/-6O / - 50/-50 / - 100/-100 / - 5O/4O5O / 4O 0/300/30 40/-40 / - toto 0,550.55 22 30/4030/40 -/-- / - O/3OO / 3O -/2O- / 2O 60/9060/90 O/3O .O / 3O. 5O/4O5O / 4O O/2OO / 2O 90/1OO90/1OO 2,22.2 44th 20/6020/60 o/-O/- 0/300/30 ;20/30; 20/30 -1--1- 2O/SO2O / SO O/2OO / 2O O/20O / 20 O/4OO / 4O 4,44.4

~rbin-
ungcn
OS
oisDiol~ rbin-
ungcn
OS
oisDiol SS. Dosierung
kg/ha (lbs/acre)dosage
kg / ha (lbs / acre) 88th BFHBFH GSHGSH WMHWMH HHHH ZFSZFS SS = =3 S3 S= ΓΪ =5 = = :
WRSS = = 3 S3 S = ΓΪ = 5 = =:
WR BWBW MSMS BNBN II. 2222nd 8,S8, p 1O1O 20/3O20 / 3O 2.Of-2.Of- 20/3020/30 2Ο/3Ο2Ο / 3Ο -/-- / - 2Ο/4Ο2Ο / 4Ο O/6OO / 6O O/3OO / 3O O/6OO / 6O II. 2323 11 ,011, 0 44th O/3OO / 3O 20/-20 / - -J--J- -/-- / - -/-- / - O/100O / 100 -/6O- / 6O -/-- / - -/1OO- / 1OO 2424 4,44.4 88th 0/500/50 -/-- / - 0/300/30 O/3OO / 3O -/-- / - 40/1 CO40/1 CO 3Ο/1ΟΟ3Ο / 1ΟΟ O/3OO / 3O O/7OO / 7O 2525th 8,88.8 1O
41O
4th 30/3030/30 -/-- / - -J--J- -/-■- / - ■ -/-- / - 60/6O60 / 6O -/6O /- / 6O / -/-- / - -/9C- / 9C 2626th co
η co
η 11 ,O
4,411, O
4.4 88th 90/1OO
80/9090/1OO
80/90 -J--J- 90/-
70/-90 / -
70 / - 8O/-
6O/-8O / -
6O / - 100/-
100/-100 / -
100 / - 4Ο/9Ο
40/704Ο / 9Ο
40/70 O/7O
O/7OO / 7O
O / 7O o/-
o/-O/-
O/- -Λ-Λ 2727 coco 8,88.8 S
4
2S.
4th
2 90/4O90/4O -J--J- 70/3070/30 4Ο/2Ο4Ο / 2Ο -/-- / - 60/9O60 / 9O 5Ο/7Ο5Ο / 7Ο 2Ο/2Ο2Ο / 2Ο 30/ 8O30 / 8O 2323 KJ
cn KJ
cn 8,8
4,4
2,28.8
4.4
2.2 33 1 CO/20
90/-
80/-1 CO / 20
90 / -
80 / - -/-- / - 80/-
40/-
0/-80 / -
40 / -
0 / - TO/-
2O/-
o/-TO / -
2O / -
O/- -./-.
20/--./-.
20 / - 80/9O
o/-
ZQ J- 80 / 9O
O/-
ZQ J- 8Ο/9Ο
o/-8Ο / 9Ο
O/- 6O/-
4O/-
3O/-6O / -
4O / -
3O / - —I -—I - 2929 £61£ 61 8,88.8 O/3OO / 3O 50/3050/30 2Ο/3Ο2Ο / 3Ο 80/10080/100 ZQ J10ZQ J10 3Ο/7Ο3Ο / 7Ο O/7OO / 7O QOf-QOf-

Claims (2)

PatentansprücheClaims 1. JDiphenyläther dor allgemeinen Formel1. Diphenyl ether dor general formula F? ϊF? ϊ ih welcher ;ih which; X Halogen,X halogen, η eine ganze Zahl von \ bis 5, R Alkyl mit 1 bis 4 Kohlenstoffatomen* Alkoxy mit 1 bis 4 Kohlenstoffatomen, Halogen, Trifluorrnethyl-» Cyan-, SuIfo-, Methylsulfönyl-, Förmyl-, Methylthiö- und Dirne t hy laminosulf onylgrupperrη is an integer from \ to 5, R alkyl with 1 to 4 carbon atoms * alkoxy with 1 to 4 carbon atoms, halogen, trifluoromethyl, cyano, sulfonyl, methylsulfonyl, formyl, methylthio and dirne laminosulfonyl groups bedeuten« % mean « % 2. Verfahren'zur Herstellung Von Mphenyläthern nach Anspruch 1, dadurch "gekennzeichnet, daß man ein Halogenphenol mit einem in 3-Stellung substituierten 4-Nitrohalogenbenzol in an sich bekannter Weise umsetzt.2. Process for the production of phenyl ethers according to claim 1, characterized "in that a halophenol is substituted with a 4-nitrohalogenobenzene substituted in the 3-position implemented in a manner known per se. 3» Verwendung von Diphenyläthern nach Anspruch 1 oder herge* stellt nach dem Verfahren gemäß Anspruch 2 als Herbizide,3 »Use of diphenyl ethers according to claim 1 or herge * represents according to the method according to claim 2 as herbicides, 309826/1197309826/1197
DE19722261918 1971-12-23 1972-12-18 DIPHENYL ETHER AND METHOD FOR THEIR MANUFACTURE AND USE Pending DE2261918A1 (en)

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EP0035475A1 (en) * 1980-03-05 1981-09-09 Ciba-Geigy Ag Herbicidally active 2-nitro-5-phenoxyphenyl oxazoles, oxazines, imidazoles, pyrimidines and thiazoles, their preparation and their use
US4431439A (en) * 1980-03-05 1984-02-14 Ciba-Geigy Corporation Herbicidally active 2-nitrophenoxyphenyloxazines and dihydrooxazines
US4523034A (en) * 1981-04-08 1985-06-11 Basf Aktiengesellschaft Herbicidal diphenyl ethers, their preparation and their use as herbicides

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FR2165387A5 (en) 1973-08-03
US3776961A (en) 1973-12-04
IT972185B (en) 1974-05-20
JPS4868737A (en) 1973-09-19
NL7213109A (en) 1973-06-26
JPS5328967B2 (en) 1978-08-17

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